Here’s a cheap trick (n. the band) that’s sure to impress no one. It’s a shelfs that double as a balance. Depending on how much weight is on either side of the fulcrum, the shelf tilts to the left or the right. The shelf won’t completely tip over or anything (that would be silly! and pointless!), but instead provide a visual feast for the eyes.
Guy: “Look, honey! The shelf is leaning to the left! Isn’t that great?”
Girl: “I’m leaving you.”
Lean and Clean Balancing Machine [Yanko Design]